﻿/*
* Copyright (c) 2010-2012 Tesla Engine Group
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/


using Tesla.Graphics;
using XFG = Microsoft.Xna.Framework.Graphics;

namespace Tesla.Xna.Graphics {
    /// <summary>
    /// Concrete XNA 4.0 implementation of <see cref="IEffectTechnique"/>.
    /// </summary>
    public sealed class XNAEffectTechnique : IEffectTechnique {
        private XFG.EffectTechnique _tech;
        private XNAEffectPassCollection _passCollection;
        private XNAEffectAnnotationCollection _annoCollection;

        /// <summary>
        /// Gets the technique name.
        /// </summary>
        public string Name {
            get {
                return _tech.Name;
            }
        }

        /// <summary>
        /// Gets the collection of passes that decorate the technique.
        /// </summary>
        public IEffectPassCollection Passes {
            get {
                return _passCollection;
            }
        }

        /// <summary>
        /// Gets the collection of annotations contained by the technique.
        /// </summary>
        public IEffectAnnotationCollection Annotations {
            get {
                return _annoCollection;
            }
        }

        /// <summary>
        /// Gets the actual XNA technique object.
        /// </summary>
        internal XFG.EffectTechnique XNATechnique {
            get {
                return _tech;
            }
        }

        /// <summary>
        /// Creates a new instance of <see cref="XNAEffectTechnique"/>.
        /// </summary>
        /// <param name="tech">The underlying XNA technique.</param>
        internal XNAEffectTechnique(XFG.EffectTechnique tech) {
            _tech = tech;
            _passCollection = new XNAEffectPassCollection(tech.Passes);
            _annoCollection = new XNAEffectAnnotationCollection(tech.Annotations);
        }
    }
}
